Do Feetures sports performance undergarments have PFAS?
Feetures sports performance undergarments average 54 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 Feetures sports performance undergarments graded as of October 2026, below the 59 out of 100 median for the 12 other sports performance undergarments brands graded alongside it.
Feetures sports performance undergarments average Good on our four-band scale. None of them clear our buy threshold.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
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- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
Which Feetures sports performance undergarments contain PFAS? Poor and Bad, we’d swap these
- Merino wool blend, nylon, elastane
- We found no PFAS statement from the brand
- Azo dyes in textile coloring. The 'Limited Edition' colorway suggests custom dyeing. Azo dyes can break down…
4 hazards checked on this product, all on its full breakdown.
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- Acrylic blend sock with no disclosed treatments
- We found no PFAS statement from the brand
- Azo dyes in synthetic fibers. Acrylic blends may use azo dyes during manufacturing; Feetures does not…
4 hazards checked on this product, all on its full breakdown.
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- Merino wool blend, synthetic fibers
- We found no PFAS statement from the brand
- Microplastics. Like all synthetic-blended socks, nylon and elastane fibers may shed microscopically during…
- Nylon blend with moisture-wicking treatment
- We found no PFAS statement from the brand
- PFAS. Nylon athletic socks are routinely finished with fluorochemical water-repellent coating…
5 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonBetter sports performance undergarments from other brands
Graded higher than the Feetures average of 54.
- Cotton/polyester blend socks, no waterproofing
- Azo dyes
3 hazards checked on this product, all on its full breakdown.
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- 100% cotton
- We found no PFAS statement from the brand
- Azo dyes and residual dye chemicals
3 hazards checked on this product, all on its full breakdown.
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- Supima cotton, no surface treatment disclosed
- We found no PFAS statement from the brand
- Formaldehyde / VOCs
4 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonThe same question, asked of the other sports performance undergarments brands
Best average grade first. Feetures averages 54.
See every Feetures product we grade on the Feetures brand page, or the full sports performance undergarments ranking.